Angry Turkey. Help?

We have a young male turkey who has recently started laying on eggs like a hen. He has also been VERY agressive towards the chickens he is fenced in with [pecking at them/chasing them around/just fighting in general]. His feathers also keep coming out. He's never acted like this before so it's really strange to see him be so agressive. Any ideas on what's going on with him or what we can do to stop the weird behavior?